Electric signaling system.



No. 835,384. PATENTED Nov. 6, 1906.

J. s. ANDERSON. ELECTRIC SIGNAEING SYSTEM.

APPLIQUE@ FILED JUNE 1e, 190s.

z SHEETS-SHEET 2.

one or both of the cables '22, 23, or 24 will be pulled violently. This Wilt occur, for in stance, if the bridge breaks down, or even it the Wei ht be released by the yielding oi' the sca `old 9. The result is th at a vigorous pull is made upon the cable Vihe el'iect of this is to lower the arm 33 and raise the arm 31, the latter serving somewhat after the manner of a semaphore'arm. The latch 34 engages the teeth' disk 30,-and consequently the arm- 31, inthe neW'position thus assumed.` The portion 45 ofthelever/42 is lowered, andthecontactmember=43 is torcednnto eng-agement Withtlre' contactshead* 51: The latter-yields slightly,v owing 53, the rod 52 sliding a :little to the'lef-t, according tol thevieW shown This is for the purpose oi" enabling the contact mem- .bere 43 51 to' engage each other with afcertain degree ot resilience, thereby a'liording The contactI good` electrical connection. thus'beingclosed, a circuit hereinafter traced is also closed. The semaphore-arm 31 gives additional *Warning and m be observed by section'- blosses or- 4other employees whose business it is to attend to the tra cli. For instance, itA a-given semaphore-armrises a little thesection boss Who attends to that part* of the track'wvill sce that somethingis wrong With`v thetrack, and he can attend to the matter in tine-.-

inthe form showr in. Fig. 4 the cable 57 takes the place ot the cable `Z5 and is mountl "ed upon a post 56, A; pu'iley 'issupportedupon thepost -56 and is engaged by the cable 5.7,' Which passes over it and supports a Weightf 59'.' A metallic casting 59a, having the gen-eral form ot an eye, mounted rigidly upon-the post. A' pair oi" `knives 60aL are so arranged that when drawn up intoy the eye they cut th'e rope. From the Weight 59 anothercablc 60 extends upward and engages the lowerend of a-lever @-1, pi'votally sup ported iand held normaliy iny the position in'- dica-ted by means of a leaf-spring 62'.' A casing 63 is mounted upon the post button 64 is movably supported by the casing and is di's osed Within the p atlr of the ups per end-of t e lever 61; The button 64 is adjacent to aleaf-'spring 65, the latter being adapted to engage and disengage a contact-y L. v thus serv es as a button 66'. The leai-spring contact' member. Awvire 67 connects thc spring with the Wire 14, the contact-button 66- b'eingsimilarly connected by a Wire 68 With the Wire 13. The cable 57 being pulled by` the displacement of the part to which it is connected, the weight 59, hitherto supported by the cable 57, is suddenly releasedand'thc tension oi' the cord or cable 6() is Isuddenly increased. This causes the lever 61 to press the button 64, thereby closing contact between the contact-spring 65 and the contact-button oo. This leaves the 32, and thus hoids the to thel resilience ot the spring 56, and a circuit partially closed-that is to say, the

circuit from the` contact-plate 1S through the wire to the contact-plate 17 is completed;

but the system-stili awaits the arrival ot a locomotive to completethe circuit from one of the contact-plates .18 to the other contactplate 17. A locomotive 69 is shown at the right in Fig. 3 and is supposed to beap )roach- ,ing the apparatus above describe The cab is shown at70, and mounted Within it isa battery 71; YFrom this battery a--Wire-72 leads to anelectrie bell 7 Another-Wire- -74 leads from thev battery to a--catenarywraile y7 5. Another"catenary-raii 76 is connected by a Wirev 77 With the-bell' 73. They locomogtive continuing to advance, the catenarylrails 75 76 engage the contact1-piates-1-7 18,

-iand the following circuit is thus completed: gbattery 71, WireI 72,y bell- 73', Wire 77, cate mary-rail 7 6', contact-plate 18, wire- 16,I Wirei 14, Wire 54, contact members 5143, lcveriid, Wire 55, wire 13,' Wire 16, contact-plate-17,

lcatenaryrail 75, Wire-7 4, black to battery 71.'

The circuit is substantially the same' with the apparatus shownnin F ig. 4, theonlydittterence being that they current Yfrom thewire 114 passes through the Wire 67, contact 'memfq bers 65 66, and Wire 68 to Wire 13" instead ot assingthrough the contact'membersshown at the upper left-hand corner ot lliig.vl 3. This circuit rings the bell 73 and gives Warning toy the engineer.

in' case the form shown inv Fig. 2 `be-'emF ployed it may happen that' some fer-sonl other than-the engineer detects the disaster 10o upon the track, being apprised in the iirstfin-` stance by the position of 'the arm B1! The damage having been remedied, the latch v34 is raised'and the arm` 31 lowered to normal positioni, as indicated in Fig.-v 2. 105

It Will be understoodfthat Iido-not limit myself to any particular means forconnectl ing the cable with the track or with aiture, for the reason that this step may be aecomplished in amultitude of'ways, all coming U0 within the scope of my invention.

Having thus described my invention, I claim as new andy desire to secure-byilretters Patent- 1. The combination of electric circuit, a 1 I 5 part of' which is mounted upon`l a moving train, contacts controllable by` movements oi' said trainfor partially closing said circuit;

a contact disposed adjacent to the track and normally open, a cable connected with said 120 contact for closing the same, a `Weiglrtcon nected with said cabieffor pulling the latter,

a severable member temporarily supporting said weight; and means connected with a A railroad-track and controllable by the yielding' I 2 f th creol" for cutting sai-d sev erable member.

The combination of a traclr, cables connected therewith, contact mechanism con frolla-ble by said cables, mechanism connected with said cables and provided with a semai 3o jneoted with said Contact and controllable by phon-arm fol asing the latter When said In testimony whereof I have signed my cable is actuated, vpaWl-alfld-ra'ochsl; meclmnname to this specification in the presence of i0 ism for holding sald semaplore-'arm nfvar i two subsoibng Witnesses. ous ostons aocofdn' to me deffree o u i T upoll said cable', and :11 electric ircut 30n- I JAMES S ANDERSON Witnesses WM. E, SMAIL-s movomens of rolling-stool: fo? th purpose `VICTOR SEITZ.

of Closing said soumet. 

